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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 2663-2668 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The formation of high-resistivity layers in initially highly doped n- and p-type epitaxial GaAs by the passage of 25- to 50-MeV oxygen ions was investigated. The experimentally determined projected ranges of these ions are 14.0 and 28.8 μm, respectively. The sheet resistance of thin (0.5 μm) epitaxial surface layers exposed to such ions increases rapidly with fluence in the range 1013–1015 cm−2 but, depending on the initial doping density, may decrease again at higher doses. The remnant conductivity in the epitaxial layers after implantation is dominated by hopping processes with low activation energies (43–68 meV). Secondary-ion mass spectrometry was used to measure the depth profiles of Si ions implanted into GaAs and InP at energies of 30–70 MeV. The projected ranges are slightly larger (≤10%) than those predicted by current theory, and the activation efficiency of the implanted Si ions in both GaAs and InP is higher than for low-energy (∼100 keV) ions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 2253-2255 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The depth profiles measured by secondary-ion mass spectrometry of 56 MeV oxygen ions implanted into Si, GaAs, and InP are reported. Most of the oxygen is contained within a sharp (full width at half maximum ∼2 μm) non-Gaussian profile centered at ∼31 μm in GaAs, ∼36 μm in InP, and ∼46 μm in Si, with the distribution skewed towards greater depths. The experimental projected ranges appear to be 10% larger than theoretical predictions. Changes in the electrical, optical, and structural properties of the material were measured by transmission electron microscopy (TEM), photoluminescence, and spreading resistance profiling. In the as-implanted Si, the maximum perturbation in the electrical properties occurs at ∼37 μm. No defects are visible by TEM in any of the as-implanted semiconductors for oxygen ion doses of 1.35×1015 cm−2 but the photoluminescent intensity in GaAs and InP is reduced by more than an order of magnitude as a result of this type of implantation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 807-808 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The liquid-helium distribution system for the FSU superconducting linear accelerator has been installed and a preliminary evaluation of the system performance has been made. A heat leak of about 30 W was anticipated for the entire system. With two of the five cryostats in place, we estimate an overhead heat leak for the piping system of about 37 W.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 50 (1985), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effects of needle tenderization on the curing processes and final cured ham properties of packer style and skinless hams were investigated. Skinless hams absorbed salt faster and lost weight faster than packer style hams. Needle tenderized hams also absorbed salt faster and had more weight loss than nontenderized hams in both the packer style and the skinless groups. Two months'aging resulted in excess dehydration and lowered quality in the skinless tenderized group. In skinless hams, curing, salt equalization and aging times were reduced so that acceptable, though mild flavored, hams that met the USDA requirements for weight loss and salt content were produced within 5 wk.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two trials were conducted. In trial I, boneless hams were cured with salt, sugar, potassium nitrate and sodium nitrite or salt, sugar and nitrite only. Half of the hams in each group was tied with heavy twine and half was enclosed in elastic netting. There were no differences in any variable due to the oresence or absence of nitrate. Hams that were netted had higher yields after curing and aging than tied hams. They also had a more desirable general appearance. There were no differences in composition, palatability scores or tenderness. In trial II one group of boneless hams was dipped in 2.5% potassium sorbate solution, placed in elastic netting, cured and aged while a similar group was not dipped. Treated hams were slightly more desirable in general appearance, slightly higher in moisture and lower in nitrite. Flavor (P 〈 0.05) and overall satisfaction scores (P 〈 0.01) favored the treated group. Saltiness scores also were lower (P 〈 0.05) in the treated group. Yeast and mold counts were lower (P 〈 0.05) for the treated groups after curing, after salt equalization and after aging 1 month, indicating that potassium sorbate could be used successfully as a yeast-and-mold-retardant in cured hams.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: 60 hams of approximately number 3 quality (Wisconsin Score) were divided into three groups of 20 hams each. Group 1 was unskinned, group 2 was normally skinned and group 3 was fully skinned. All hams were processed by standard dry-cure procedures and weighed at each processing step. 30 hams, including 10 from each group, were evaluated organoleptically and tested for peroxide values, salt content and moisture content, after 1 months’ aging and the remaining 30 after 3 months’ aging. The skinned hams had significantly higher skinning loss, shrinkage, salt content and shear values than the normally skinned or unskinned hams. The unskinned hams had the highest tenderness scores and lowest shear values and salt content. The normal skinned hams were scored highest for flavor. Overall eating satisfaction and rancidity values appeared to be unaffected by skinning.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 51 (1986), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Color stability of restructured beef steaks processed from beef boned 4 hr postmortem (HB) and 96 hr postmortem (CB) was determined using a Hunter color difference meter and a semi-trained color evaluation panel. Steaks were formulated using ground tenderized (2.5 cm) restructurable meat (75% of formulation), salted preblended meat (3% NaCl + 0.267% BHA, 25% of formulation) and enough ground fat to form steaks of 10% fat. Steaks were aerobically wrapped and vacuum packaged. Hunter L, a, b, a/b values and color panel scores during a 7-day retail display revealed that HB steaks had superior color stability. This was attributed to the ability of NaCl to inhibit glycolysis in the HB preblended meat and to act as a prooxidant of myoglobin in the CB preblended meat.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Thirty-two intact hams were utilized to study the effects of tumbling and tumbling time (1 hr continuous, 3 hr intermittent, 6 hr intermittent) on the quality and microflora of intact dry-cured hams. Tumbled hams had higher salt concentrations, lower moisture percentages, and showed more muscle separation and excessive surface drying. Sensory panel scores were similar for all treatments except that 3 hr intermittently tumbled hams had higher salt and lower overall satisfaction scores. Tumbling significantly accelerated salt and nitrite penetration during the Fust 2 wk of curing but had little subsequent effect. Tumbled hams generally had lower microbial counts; however, after aging all hams were of acceptable microbial quality.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 39 (1974), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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